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L-Lysine
Hydrochloride
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L-Lysine Monohydrochloride
(S)-2,6-Diaminohexanoic acid monohydrochloride |
 |
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C6H14N2O2·HCl:182.65 |
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CAS No.657-27-2 |
Nitrogen: 15.34% |
| L-Lysine Monohydrochloride , when dried, contains not less than 98.5
percent and not more than101.0 percent of L-Lysine
Monohydrochloride (C6H14N2O2·HCl). |
| Description: |
White powder; slightly characteristic taste.
Freely soluble in water and in formic acid, very slightly
soluble in ethanol, practically insoluble in either.
Solubility (H2O, g/100g):
about 40(0˚C), 63(20˚C), 96(40˚C),
131(60˚C), |
|
Identification:
|
Compare the infrared absorption spectrum of the sample with that of the
standard by potassium bromide disc method.
|
| Specifications: |
| Item |
Limit |
| Specific rotation [α]
20D |
+20.8˚to
+21.5˚
+26.0˚to +26.9˚（calc. as free base） |
|
State of solution
(Transmittance) |
Clear
and colorless
Not less than 98.0% |
| Chloride (Cl) |
19.12 to 19.51% |
| Ammonium (NH4) |
Not more than 0.02% |
| Sulfate (SO4) |
Not more than 0.020% |
| Iron (Fe |
Not more than 10PPm |
| Heavy metals (Pb) |
Not more than 10PPm |
| Arsenic (As2O3) |
Not more than 1PPm |
| Other amino acids |
Chromatographically
not detection |
| Loss on drying |
Not more than 0.40% |
|
Residue on ignition
(Sulfated) |
Not more than 0.10% |
| Assay |
98.5 to 101.0% |
| PH |
5.0 to 6.0 |
☆☆☆
Recommended storage limit and condition: Preserved in tight
containers at controlled room temperature (2 year). |
